Includes shares of Class A restricted common stock and restricted stock units.

(
2)

Shares held by Lloyd W. Howell, Jr. Trust.

(
3)

Corrects error in the original vesting schedule reported on the reporting person's Form 3.

(
4)

The options reported in this transaction are fully vested and exercisable. Upon exercise of an option, the reporting person must sell to the issuer, and it must repurchase at par value, one share of Class E special voting common stock for each option exercised.